Deflation is a global value of more money or is that prices of goods and services decreased gradually by deflation. Arising from money circulation is too small. That is, the population does not have the money to buy goods and services resulted in less profitable producers, thus reducing the production capacity reduction will cause unemployment to jeopardize the economy, deflation is divided into deflation, a weak state that the price of goods and services dropped no more than 5% per year. Moderate inflation is deflation the price of goods and services dropped more than 5% But no more than 20% per year, and serious deflation means. • The price of goods and services decreased more than 2-0% per year.